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Design Criteria for the Differential Settlement of Landfill Foundations Modeled Using Random Fields
The long-term functionality of composite landfill final cover systems and composite floor liner systems depends on the distortions imposed on these systems by differential settlement. The evaluation of differential settlement is particularly challenging for final cover systems, because of the heterogeneity of waste, and for floor liners over highly variable subgrades (e.g. existing waste, mine spoil, etc.). Deterministic approaches to landfill settlement prediction are not able to capture the spatial variability in the waste mass and subgrade properties which control differential settlement. An alternative, probabilistic solution is to use random fields to model the waste and subgrade properties. This paper discusses the application of a random field model to the design of landfill final cover and floor liner systems. The paper suggests an approach to select acceptable probabilistic criteria for design.
Design Criteria for the Differential Settlement of Landfill Foundations Modeled Using Random Fields
The long-term functionality of composite landfill final cover systems and composite floor liner systems depends on the distortions imposed on these systems by differential settlement. The evaluation of differential settlement is particularly challenging for final cover systems, because of the heterogeneity of waste, and for floor liners over highly variable subgrades (e.g. existing waste, mine spoil, etc.). Deterministic approaches to landfill settlement prediction are not able to capture the spatial variability in the waste mass and subgrade properties which control differential settlement. An alternative, probabilistic solution is to use random fields to model the waste and subgrade properties. This paper discusses the application of a random field model to the design of landfill final cover and floor liner systems. The paper suggests an approach to select acceptable probabilistic criteria for design.
Design Criteria for the Differential Settlement of Landfill Foundations Modeled Using Random Fields
Foye, K. C. (author) / Zhao, X. (author)
Georisk 2011 ; 2011 ; Atlanta, Georgia, United States
GeoRisk 2011 ; 255-262
2011-06-21
Conference paper
Electronic Resource
English
Design Criteria for the Differential Settlement of Landfill Foundations Modeled Using Random Fields
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